word ·phrase (IDIOM)
Definition: to be so surprised, angry or moved by something that you do not know what to say Level: C2
这个奖项是如此荣幸和出乎意料——我（感到）说不出话来。
This prize is such an honor and so unexpected - I ___am ___lost ___for ___words.
我如此愤怒，以至于我（感到）很长时间说不出话来。
I was so enraged that I ___was ___lost ___for ___words for quite a long time.
当她看到惊喜派对时，她（感到）说不出话来。
When she saw the surprise party, she ___was ___lost ___for ___words.